Paul W Harrison

US Patent:

6464083, Oct 15, 2002

Filed:

Oct 12, 1999

Appl. No.:

09/416567

Inventors:

Paul S. Harrison - Pittsford NY
David A. DOrazio - Penfield NY
Robert H. Muraco - Amherst NY

Assignee:

HM Cross Sons - Rochester NY

International Classification:

B03G 100

US Classification:

209213, 209214, 209215, 153401

Abstract:

An apparatus for collecting, transporting and releasing ferrous debris from a floor is disclosed. The apparatus includes a magnet movable between a lowered and a raised position to provide a sufficient magnetic field intensity to capture debris from the floor in the lowered position and to permit gravity induced separation of the debris in the raised position. The magnet may be a permanent magnet or an electromagnet.

US Patent:

6852948, Feb 8, 2005

Filed:

Jun 13, 2001

Appl. No.:

09/880391

Inventors:

Paul Wollcott Harrison - Los Angeles CA, US

Assignee:

TherMark, LLC - Pittsburgh PA

International Classification:

B23K026/00
B05D001/04

US Classification:

21912185, 347224, 427483, 427555, 427556

Abstract:

A method of radiantly marking substrates including metals, plastics, ceramic materials, glazes, glass ceramics, and glasses of any desired form, which comprises electrostatically applying to the material to be marked a variable thickness layer of marking material containing energy absorbing components and/or enhancers, then irradiating said layer with a radiant energy source such as a laser or diode based energy source such that the radiation is directed onto said layer, optionally in accordance with the form of the marking to be applied, preferably using a laser or diode based energy source of a wavelength which is sufficiently absorbed by the marking material so as to create a bonding of the marking material to the surface of the workpiece at the irradiated areas.

US Patent:

6855910, Feb 15, 2005

Filed:

Nov 6, 2001

Appl. No.:

09/993099

Inventors:

Paul Wollcott Harrison - Los Angeles CA, US

Assignee:

Thermark, LLC - Pittsburgh PA

International Classification:

B23K026/00

US Classification:

21912185, 427555

Abstract:

A method of laser marking metals, plastics, ceramic materials, glazes, glass ceramics, and glasses of any desired form, which includes applying to the material to be marked a variable thickness layer of marking material containing energy absorbing enhancers then irradiating said layer with a laser or diode based energy source such that the radiation is directed onto said layer in accordance with the form of the marking to be applied, and using a laser or diode based energy source of a wavelength which is sufficiently absorbed by the marking material so as to create a bonding of the marking material to the surface of the workpiece at the irradiated areas.

US Patent:

20070199930, Aug 30, 2007

Filed:

Feb 20, 2007

Appl. No.:

11/676778

Inventors:

Eric McElroy - Grove City PA, US
Todd Hockenberry - Beaver PA, US
Paul Harrison - Los Angeles CA, US
Michael Stover - Orlando FL, US
Carl Schulthess - Mission Viejo CA, US
David Sweet - Westborough MA, US

Assignee:

MECCO PARTNERSHIP, LLC - Ingomar PA

International Classification:

B23K 26/12

US Classification:

219121860, 219121680

Abstract:

The present invention is directed to a laser marking device, system and method for its use.

US Patent:

60752238, Jun 13, 2000

Filed:

Sep 8, 1997

Appl. No.:

8/925031

Inventors:

Paul Wollcott Harrison - Los Angeles CA

Assignee:

Thermark, LLC - Pittsburgh PA

International Classification:

B23K 2600

US Classification:

21912185

Abstract:

A method of laser marking metals, plastics, ceramic materials, glazes, glass ceramics, and glasses of any desired form, which comprises applying to the material to be marked a variable thickness layer of marking material containing energy absorbing enhancers then irradiating said layer with a laser or diode based energy source such that the radiation is directed onto said layer in accordance with the form of the marking to be applied, and using a laser or diode based energy source of a wavelength which is sufficiently absorbed by the marking material so as to create a bonding of the marking material to the surface of the workpiece at the irradiated areas.

US Patent:

63134365, Nov 6, 2001

Filed:

Jan 5, 2000

Appl. No.:

9/477921

Inventors:

Paul Wollcott Harrison - Los Angeles CA

Assignee:

Thermark, LLC - Los Angeles CA

International Classification:

B23K 2600

US Classification:

21912185

Abstract:

A method of laser marking metals, plastics, ceramic materials, glazes, glass ceramics, and glasses of any desired form, which comprises applying to the material to be marked a variable thickness layer of marking material containing energy absorbing enhancers then irradiating said layer with a laser or diode based energy source such that the radiation is directed onto said layer in accordance with the form of the marking to be applied, and using a laser or diode based energy source of a wavelength which is sufficiently absorbed by the marking material so as to create a bonding of the marking material to the surface of the workpiece at the irradiated areas.

US Patent:

20150344712, Dec 3, 2015

Filed:

May 27, 2015

Appl. No.:

14/545593

Inventors:

Paul W. Harrison - Los Angeles CA, US

International Classification:

C09D 11/36
C09D 11/02
B05D 3/06
C09D 11/322

Abstract:

Methods and compositions are disclosed for quickly creating durable surface marks and/or decorations on substrates including metal, glass, ceramic, porcelain, natural and engineered stone, as well as plastics, polymer composites and other organic materials with color, high resolution and high contrast using inkjet technology and laser, NIR diode or UV LED energy. The improved methods and compositions are based on established and emerging sub-micron and nanoparticle technology. Most properties of nanoparticles are size dependent and do not become apparent until the particle size has been reduced to the nanometer scale. Examples of such properties include increased specific surface area, facilitating the absorption and/or scattering of visible light and laser, NIR diode or UV LED energy and the decreased melting point of such materials when their particle size is reduced to the nanometer scale. Improved results such as smoothness and durability are obtained by using nanoparticles of silica, pigments and other materials in such marking processes.